Was the consolidation of North American colonies "inevitable"?

Quite a few nations - the Netherlands, Sweden, France, Spain, and of course England - gave the colonisation of the OTL Eastern United States a go. Of course, in our history, England ended up entirely on top, and by 1776 everything between the 45th and the 31st was Anglo-American, with English as the national language.

Was this a coincidence of history, or were there good demographic or geographical reasons? How would a timeline of multiple colonisers change the course of colonial North American history, especially the massive demographic expansion of 1630-1770? What do you all think a more linguistically and culturally balkanised America would look like?
 
I think political/economic focuses played a part. The dutch, for example, had more interest in their more productive colonies than they did New Amsterdam
 
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